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iOS Build a Weather App with Swift (Retired) Pulling Data From the Web Networking in iOS

Delip Rao
Delip Rao
1,736 Points

Bizzaro compile error

Ok. So I'm looking at the code you’re writing in this video and thinking both apiKey and baseURL are constants so why not write them next to each other like:

class ViewController: UIViewController {

  private let apiKey = "super-secret"
  private let baseURL = NSURL(string: "https://api.forecast.io/forecast/\(apiKey)/")

That gives a compile error: ViewController.Type does not have a member named 'apiKey'

This is weird. I should be able to use a constant right after declaring it. Java/Scala/YouNameIt lets me do that.

Here's a simple case to illustrate this in a playground:

class Foo {
  private let a = 5
  private let a2 = a * a


1 Answer

Chris Shaw
Chris Shaw
26,676 Points

Hi Delip,

Properties with a class/struct are inaccessible to each other until the init or viewDidLoad method is called for example, so you will need to follow like Pasan is writing his code in the video where the baseURL constant lives inside viewDidLoad and it will work.